SUSE update for sudo

1) Out-of-bounds write

EUVDB-ID: #VU68973

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-43995

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary condition within plugins/sudoers/auth/passwd.c when Sudo is configured to use the crypt() password backend (e.g. when passwd authentication is enabled). A local user with access to Sudo  can enter a password of 8 characters or fewer to trigger a heap-based buffer over-read and gain access to sensitive information.

Mitigation

Update the affected package sudo to the latest version.

Vulnerable software versions

SUSE OpenStack Cloud Crowbar: 9

SUSE Linux Enterprise Server for SAP: 12-SP4

SUSE Linux Enterprise Server: 12-SP3-BCL - 12-SP4-LTSS

SUSE OpenStack Cloud: 9

sudo-debugsource: before 1.8.20p2-3.33.1

sudo-debuginfo: before 1.8.20p2-3.33.1

sudo: before 1.8.20p2-3.33.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20224240-1/

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.